Your mattress is an expensive investment-why not protect it? Shield your mattress from spills, bed-wetting, bed bugs, dust mites and allergens. Featuring extra-tough seam construction, high thread-count polyester knit fabric and a full 1ml thick polyurethane waterproof layer. Ultra-plush knit fabric is soft to the touch. Fully breathable-does not trap heat and is cool to sleep on. Bed bugs are infesting homes and apartments at an alarming rate and mattress encasements are an effective defense. Help ease asthma and other respiratory symptoms by preventing allergens, dust mites and bacteria from reaching the sleeper. This encasement will accommodate a mattress height of 12 inch-18 inch. It is fully zippered on 3 sides and features Allergy Blocker to prevent allergens from exiting through the zipper. Bug Flap and Zipper Lock ensure that your mattress encasement remains bed bug proof for the life of your mattress.